How to check if php is installed in linux

Method 1: Use command line tools

The most common method is to use the following command in the command line:

php -v

In the terminal Enter this command in the window and press the Enter key. The version number of PHP installed in the system will be displayed. If it is not displayed, PHP is not installed on the system.

Method 2: Check the package manager

We can check whether PHP is installed through the package manager.

If you are using a Linux system installed with .deb package such as Debian or Ubuntu, you can use the following command:

dpkg -l | grep php

If you are using Red Hat, CentOS, Fedora and others. For rpm package systems, you can use the following command:

rpm -qa | grep php

If there is matching output, it means that PHP has been installed, otherwise it has not been installed.

Method Three: Check the Web Server

If PHP is not installed on your system, you may not encounter any problems. Therefore, using a browser to check if PHP is installed is a more practical approach.

In order to check whether PHP is installed in the system, please add the following code snippet and save it as a PHP file:

<?php phpinfo(); ?>

Upload this file to your web server and open it in the browser Open this file. If everything is fine, you should see information about PHP such as PHP version, configuration settings, and any extensions supported in the server environment. If you don't see this information, PHP may not be installed, or you may be viewing a non-PHP file.

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